I was wondering if we could query already queried table. Like this:
$results = Table::where('name','like', '%'.$request['name'].'%')->get();
$results = $results::where('surname', 'like', '%'.$request['surname'.'%'])->get();
I try to do something like this, because I have many options to query from table, and some of them may be empty. So in order not to check all possibilities, and writing different queries, it would be easier in this way. Thanks in advance
The $result variable is in fact a Laravel Collection, so you have a lot of option to work with a Collection including its own where() function.
Imho I will go with this code:
$query = Table::where('name','like', '%'.$request['name'].'%');
$results = $query->get();
$results2 = $query->where('surname', 'like', '%'.$request['surname'.'%'])->get();
Related
I am trying to diedump the query on my index screen using this line of code:
dd(DB::table('members')->where('name', '=', 'Tycho')->toSql());
Now the problem is that when I am displaying the query on my screen I get this:
"select * from `members` where `name` = ?"
My final goal of these lines of code is that I can save offline queries and execute them when the application is online. Unless someone has a solution for this, I'll have to save the queries in a database.
You are seeing the ? placeholders as Laravel uses Prepared Statements.
See Ijas Ameenudeen's answer on another SO question which details how to add a toRawSql() macro on the Eloquent builder which will replace the placeholders with the bindings that you supplied to the original query.
This is because you are using the toSql method, you can use the getBindings method to get the values / bindings.
oneliner:
$query = DB::table('members')->where('name', '=', 'Tycho')->toSql();
// will give the raw query with bindings.
$sqlWithBindings = str_replace_array('?', $query->getBindings(), $query->toSql());
You can try this:
DB::enableQueryLog();
DB::table('members')->where('name', '=', 'Tycho')->get();
echo "<pre>";
print_r(DB::getQueryLog());
I'd like to sort my data by using orderby in Laravel Eloquent advanced query. Here is my code:
$users = User::where(function($query){
$query->orderBy('created_at', 'DESC');
})->get()->toArray();
var_dump($users);
But it doesn't work. Instead if I use orderby like this:
$users = User::orderBy('created_at', 'DESC')->get()->toArray();
var_dump($users);
It works.
Can anybody suggest how to make the orderby works for the advanced query? Thanks
I tried all sorts of different combinations and found the orderBy must be outside the query function (or maybe should be the last one?). Here is the code which is working:
$users = User::where(function($query){
// ......
})->orderBy('created_at', 'DESC')->get()->toArray();
var_dump($users);
I want to query a table and only need one cell returned. Right now the only way I can think to do it is:
$query = $this->db->query('SELECT id FROM crops WHERE name = "wheat"');
if ($query->num_rows() > 0) {
$row = $query->row();
$crop_id = $row->id;
}
What I want is, since I'm select 'id' anyway, for that to be the result. IE: $query = 'cropId'.
Any ideas? Is this even possible?
Of course it's possible. Just use AND in your query:
$query = $this->db->query('SELECT id FROM crops WHERE name = "wheat" AND id = {$cropId}');
Or you could use the raw power of the provided Active Record class:
$this->db->select('id');
$this->db->from('crops');
$this->db->where('name','wheat');
$this->db->where('id',$cropId);
$query = $this->db->get();
If you just want the cropId from the whole column:
foreach ($query->result()->id as $cropId)
{
echo $cropId;
}
Try this out, I'm not sure if it will work:
$cropId = $query->first_row()->id;
Note that you want to swap your quotes around: use " for your PHP strings, and ' for your SQL strings. First of all, it would not be compatible with PostgreSQL and other database systems that check such things.
Otherwise, as Christopher told you, you can test the crop identifier in your query. Only if you define a string between '...' in PHP, the variables are not going to be replaced in the strings. So he showed the wrong PHP code.
"SELECT ... $somevar ..."
will work better.
Yet, there is a security issue in writing such strings: it is very dangerous because $somevar could represent some additional SQL and completely transform your SELECT in something that you do not even want to think about. Therefore, the Active Record as mentioned by Christopher is a lot safer.
I am trying to retrieve data from a simple mySql table tbl_u_type which has just two columns, 'tid' and 'type'.
I want to use a direct SQL query instead of the Model logic. I used:
$command = Yii::app()->db->createCommand();
$userArray = $command->select('type')->from('tbl_u_type')->queryAll();
return $userArray;
But in the dropdown list it automatically shows an index number along with the required entry. Is there any way I can avoid the index number?
To make an array of data usable in a dropdown, use the CHtml::listData() method. If I understand the question right, this should get you going. Something like this:
$command = Yii::app()->db->createCommand();
$userArray = $command->select('tid, type')->from('tbl_u_type')->queryAll();
echo CHtml::dropdownlist('my_dropdown','',CHtml::listData($userArray,'tid','type'));
You can also do this with the Model if you have one set up for the tbl_u_type table:
$users = UType::model()->findall();
echo CHtml::dropdownlist('my_dropdown','',CHtml::listData($users ,'tid','type'));
I hope that gets you on the right track. I didn't test my code here, as usual, so watch out for that. ;) Good luck!
I have some extremely complex queries that I need to use to generate a report in my application. I'm using symfony as my framework and doctrine as my ORM.
My question is this:
What is the best way to pass in highly-complex sql queries directly to Doctrine without converting them to the Doctrine Query Language? I've been reading about the Raw_SQL extension but it appears that you still need to pass the query in sections (like from()). Is there anything for just dumping in a bunch of raw sql commands?
$q = Doctrine_Manager::getInstance()->getCurrentConnection();
$result = $q->execute(" -- RAW SQL HERE -- ");
See the Doctrine API documentation for different execution methods.
Yes. You can get a database handle from Doctrine using the following code:
$pdo = Doctrine_Manager::getInstance()->getCurrentConnection()->getDbh();
and then execute your SQL as follows:
$query = "SELECT * FROM table WHERE param1 = :param1 AND param2 = :param2";
$stmt = $pdo->prepare($query);
$params = array(
"param1" => "value1",
"param2" => "value2"
);
$stmt->execute($params);
$results = $stmt->fetchAll();
You can use bound variables as in the above example.
Note that Doctrine won't automatically hydrate your results nicely into record objects etc, so you'll need to deal with the results being returned as an array, consisting of one array per row returned (key-value as column-value).
I'm not sure what do you mean saying raw SQL, but you coud execute traditional SQL queries this way:
...
// $this->_displayPortabilityWarning();
$conn = Doctrine_Manager::connection();
$pdo = $conn->execute($sql);
$pdo->setFetchMode(Doctrine_Core::FETCH_ASSOC);
$result = $pdo->fetchAll();
...
The following method is not necsessary, but it shows a good practice.
protected function _displayPortabilityWarning($engine = 'pgsql')
{
$conn = Doctrine_Manager::connection();
$driver = $conn->getDriverName();
if (strtolower($engine) != strtolower($driver)) {
trigger_error('Here we have possible database portability issue. This code was tested on ' . $engine . ' but you are trying to run it on ' . $driver, E_USER_NOTICE);
}
}
You can also use Doctrine_RawSql(); to create raw SQL queries which will hydrate to doctrine objects.
It should be noted, that Doctrine2 uses PDO as a base, thus I would recommend using prepared statements over plain old execute.
Example:
$db = Doctrine_Manager::getInstance()->getCurrentConnection();
$query = $db->prepare("SELECT `someField` FROM `someTable` WHERE `field` = :value");
$query->execute(array('value' => 'someValue'));
Symfony insert raw sql using doctrine.
This in version Symfoney 1.3
$q = Doctrine_Manager::getInstance()->getCurrentConnection();
$result = $q->execute($query);